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JniTypeManagerTests.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using Java.Interop;
using NUnit.Framework;
namespace Java.InteropTests
{
[TestFixture]
public class JniTypeManagerTests : JavaVMFixture
{
[Test]
public void GetTypeSignature_Type ()
{
Assert.Throws<ArgumentNullException> (() => JniRuntime.CurrentRuntime.TypeManager.GetTypeSignature ((Type) null));
Assert.Throws<ArgumentException>(() => JniRuntime.CurrentRuntime.TypeManager.GetTypeSignature (typeof (int[,])));
Assert.Throws<ArgumentException>(() => JniRuntime.CurrentRuntime.TypeManager.GetTypeSignature (typeof (int[,][])));
Assert.Throws<ArgumentException>(() => JniRuntime.CurrentRuntime.TypeManager.GetTypeSignature (typeof (int[][,])));
Assert.Throws<ArgumentException>(() => JniRuntime.CurrentRuntime.TypeManager.GetTypeSignature (typeof (Action<>)));
Assert.AreEqual (null, JniRuntime.CurrentRuntime.TypeManager.GetTypeSignature (typeof (JniRuntimeTest)).SimpleReference);
AssertGetJniTypeInfoForType (typeof (string), "java/lang/String", false, 0);
AssertGetJniTypeInfoForType (typeof (sbyte), "B", true, 0);
AssertGetJniTypeInfoForType (typeof (short), "S", true, 0);
AssertGetJniTypeInfoForType (typeof (int), "I", true, 0);
AssertGetJniTypeInfoForType (typeof (long), "J", true, 0);
AssertGetJniTypeInfoForType (typeof (float), "F", true, 0);
AssertGetJniTypeInfoForType (typeof (double), "D", true, 0);
AssertGetJniTypeInfoForType (typeof (char), "C", true, 0);
AssertGetJniTypeInfoForType (typeof (bool), "Z", true, 0);
AssertGetJniTypeInfoForType (typeof (void), "V", true, 0);
AssertGetJniTypeInfoForType (typeof (JavaObject), "java/lang/Object", false, 0);
// Enums are their underlying type
AssertGetJniTypeInfoForType (typeof (StringComparison), "I", true, 0);
AssertGetJniTypeInfoForType (typeof (StringComparison[]), "[I", true, 1);
AssertGetJniTypeInfoForType (typeof (StringComparison[][]), "[[I", true, 2);
AssertGetJniTypeInfoForType (typeof (int[]), "[I", true, 1);
AssertGetJniTypeInfoForType (typeof (int[][]), "[[I", true, 2);
AssertGetJniTypeInfoForType (typeof (int[][][]), "[[[I", true, 3);
AssertGetJniTypeInfoForType (typeof (JavaSByteArray), "[B", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaInt16Array), "[S", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaInt32Array), "[I", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaInt64Array), "[J", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaSingleArray), "[F", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaDoubleArray), "[D", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaCharArray), "[C", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaBooleanArray), "[Z", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<SByte>), "[B", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<Int16>), "[S", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<Int32>), "[I", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<Int64>), "[J", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<Single>), "[F", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<Double>), "[D", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<Char>), "[C", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaPrimitiveArray<bool>), "[Z", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<SByte>), "[B", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<Int16>), "[S", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<Int32>), "[I", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<Int64>), "[J", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<Single>), "[F", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<Double>), "[D", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<Char>), "[C", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<bool>), "[Z", true, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<bool>[]), "[[Z", true, 2);
AssertGetJniTypeInfoForType (typeof (JavaArray<JavaObject>), "[Ljava/lang/Object;", false, 1);
AssertGetJniTypeInfoForType (typeof (JavaArray<int[]>), "[[I", true, 2);
AssertGetJniTypeInfoForType (typeof (JavaArray<int[]>[]), "[[[I", true, 3);
#if !__ANDROID__
// Re-enable once typemap files contain `JavaObject` subclasses, not just Java.Lang.Object subclasses
//
// Note: dotnet/android@5c23bcda updates Java.Lang.Object to inherit JavaObject; this is not enough,
// as `<GenerateJavaStubs/>` only processes assemblies if they reference Mono.Android.dll.
AssertGetJniTypeInfoForType (typeof (GenericHolder<int>), GenericHolder<int>.JniTypeName, false, 0);
#endif // !__ANDROID__
}
static void AssertGetJniTypeInfoForType (Type type, string jniType, bool isKeyword, int arrayRank)
{
var info = JniRuntime.CurrentRuntime.TypeManager.GetTypeSignature (type);
// `GetTypeSignature() and `GetTypeSignatures()` should be "in sync"; verify that!
var info2 = JniRuntime.CurrentRuntime.TypeManager.GetTypeSignatures (type).FirstOrDefault ();
Assert.AreEqual (jniType, info.Name, $"info.Name for `{type}`");
Assert.AreEqual (jniType, info2.Name, $"info.Name for `{type}`");
Assert.AreEqual (arrayRank, info.ArrayRank, $"info.ArrayRank for `{type}`");
Assert.AreEqual (arrayRank, info2.ArrayRank, $"info.ArrayRank for `{type}`");
}
[Test]
public new void GetType ()
{
var manager = JniRuntime.CurrentRuntime.TypeManager;
Func<string, Type> GetType = s => {
var sig = JniTypeSignature.Parse (s);
return manager.GetType (sig);
};
Assert.Throws<ArgumentNullException> (() => GetType (null));
Assert.Throws<ArgumentException> (() => GetType ("java.lang.String"));
Assert.Throws<ArgumentException> (() => GetType ("Ljava/lang/String;I"));
Assert.Throws<ArgumentException> (() => GetType ("ILjava/lang/String;"));
Assert.AreEqual (typeof (void), GetType ("V"));
Assert.AreEqual (typeof (bool), GetType ("Z"));
Assert.AreEqual (typeof (char), GetType ("C"));
Assert.AreEqual (typeof (sbyte), GetType ("B"));
Assert.AreEqual (typeof (short), GetType ("S"));
Assert.AreEqual (typeof (int), GetType ("I"));
Assert.AreEqual (typeof (long), GetType ("J"));
Assert.AreEqual (typeof (float), GetType ("F"));
Assert.AreEqual (typeof (double), GetType ("D"));
Assert.AreEqual (typeof (string), GetType ("java/lang/String"));
Assert.AreEqual (null, GetType ("com/example/does/not/exist"));
Assert.AreEqual (null, GetType ("Lcom/example/does/not/exist;"));
Assert.AreEqual (null, GetType ("[Lcom/example/does/not/exist;"));
AssertPrimitiveArrayTypesFromSignature<bool> (manager, "[Z", typeof (JavaBooleanArray));
AssertPrimitiveArrayTypesFromSignature<char> (manager, "[C", typeof (JavaCharArray));
AssertPrimitiveArrayTypesFromSignature<sbyte> (manager, "[B", typeof (JavaSByteArray));
AssertPrimitiveArrayTypesFromSignature<short> (manager, "[S", typeof (JavaInt16Array));
AssertPrimitiveArrayTypesFromSignature<int> (manager, "[I", typeof (JavaInt32Array));
AssertPrimitiveArrayTypesFromSignature<long> (manager, "[J", typeof (JavaInt64Array));
AssertPrimitiveArrayTypesFromSignature<float> (manager, "[F", typeof (JavaSingleArray));
AssertPrimitiveArrayTypesFromSignature<double> (manager, "[D", typeof (JavaDoubleArray));
AssertArrayTypesFromSignature<string> (manager, "[Ljava/lang/String;", typeof (JavaObjectArray<string>));
AssertArrayTypesFromSignature<bool[]> (manager, "[[Z", typeof (JavaObjectArray<JavaPrimitiveArray<bool>>));
AssertArrayTypesFromSignature<char[]> (manager, "[[C", typeof (JavaObjectArray<JavaPrimitiveArray<char>>));
AssertArrayTypesFromSignature<sbyte[]> (manager, "[[B", typeof (JavaObjectArray<JavaPrimitiveArray<sbyte>>));
AssertArrayTypesFromSignature<short[]> (manager, "[[S", typeof (JavaObjectArray<JavaPrimitiveArray<short>>));
AssertArrayTypesFromSignature<int[]> (manager, "[[I", typeof (JavaObjectArray<JavaPrimitiveArray<int>>));
AssertArrayTypesFromSignature<long[]> (manager, "[[J", typeof (JavaObjectArray<JavaPrimitiveArray<long>>));
AssertArrayTypesFromSignature<float[]> (manager, "[[F", typeof (JavaObjectArray<JavaPrimitiveArray<float>>));
AssertArrayTypesFromSignature<double[]> (manager, "[[D", typeof (JavaObjectArray<JavaPrimitiveArray<double>>));
AssertArrayTypesFromSignature<string[]> (manager, "[[Ljava/lang/String;", typeof (JavaObjectArray<JavaObjectArray<string>>));
// Yes, these look weird...
// Assume: class II {}
Assert.AreEqual (null, GetType ("II"));
// Assume: package Ljava.lang; class String {}
Assert.AreEqual (null, GetType ("Ljava/lang/String"));
}
static void AssertPrimitiveArrayTypesFromSignature<T> (JniRuntime.JniTypeManager manager, string signature, params Type[] expectedTypes)
{
var sig = JniTypeSignature.Parse (signature);
var types = manager.GetTypes (sig).ToList ();
var messageFormat = $"Types for signature `{signature}` should contain `{{0}}`, instead contains: {string.Join (", ", types)}";
var arrayTypes = new[]{
typeof (JavaArray<T>),
typeof (JavaPrimitiveArray<T>),
typeof (T[]),
}.Concat (expectedTypes);
foreach (var t in arrayTypes) {
Assert.IsTrue (types.Contains (t), string.Format (messageFormat, t));
}
}
static void AssertArrayTypesFromSignature<T> (JniRuntime.JniTypeManager manager, string signature, params Type[] expectedTypes)
{
var sig = JniTypeSignature.Parse (signature);
var types = manager.GetTypes (sig).ToList ();
var messageFormat = $"Types for signature `{signature}` should contain `{{0}}`, instead contains: {string.Join (", ", types)}";
var arrayTypes = new[]{
typeof (T[]),
}.Concat (expectedTypes);
foreach (var t in arrayTypes) {
Assert.IsTrue (types.Contains (t), string.Format (messageFormat, t));
}
}
[Test]
public void GetTypeSignature ()
{
var jvm = JniRuntime.CurrentRuntime;
Func<string, Type> GetTypeForSimpleReference = s => {
var sig = JniTypeSignature.Parse (s);
return jvm.TypeManager.GetType (sig);
};
Assert.Throws<ArgumentNullException> (() => GetTypeForSimpleReference (null));
Assert.Throws<ArgumentException> (() => GetTypeForSimpleReference ("foo.bar"));
Assert.AreEqual (typeof (void), GetTypeForSimpleReference ("V"));
Assert.AreEqual (typeof (bool), GetTypeForSimpleReference ("Z"));
Assert.AreEqual (typeof (char), GetTypeForSimpleReference ("C"));
Assert.AreEqual (typeof (sbyte), GetTypeForSimpleReference ("B"));
Assert.AreEqual (typeof (short), GetTypeForSimpleReference ("S"));
Assert.AreEqual (typeof (int), GetTypeForSimpleReference ("I"));
Assert.AreEqual (typeof (long), GetTypeForSimpleReference ("J"));
Assert.AreEqual (typeof (float), GetTypeForSimpleReference ("F"));
Assert.AreEqual (typeof (double), GetTypeForSimpleReference ("D"));
Assert.AreEqual (typeof (string), GetTypeForSimpleReference ("java/lang/String"));
Assert.AreEqual (null, GetTypeForSimpleReference ("com/example/does/not/exist"));
}
}
[JniTypeSignature (JniTypeName)]
class GenericHolder<T> : JavaObject {
public const string JniTypeName = "net/dot/jni/test/GenericHolder";
public T Value {get; set;}
}
}